Draft-rigging.



J. mms; DRAFT RIGGINGff APPLICATION FILED AUQ. 24,1909.

965,126, y rammed Jn1y19,191o.

2 SHEETS-SHEET 1v.

UMS

w'\5 H JNVENTOR.

JAMES TIMMS, OF COLUMBUS, OH-I0.

DRAFT-RIGGING.

' Specification of Letters Patent.

Patented July 1e, 191e..

Application med August 24, 1909. serial No. 514,449;

To. all wlwm fit may concern:

Be it known that I, JAMES Trams, a. citizen of the United States,residing at Columbus, in the county of Franklin and State of Yhio, haveinvented certain new and useful Improvements in Draft-Rigging, ofwhichthe following is a specification.

My invention relates to improvements in draft rigging for cars, oneobject ofthe invention being to provide improved connection between thedraw-bar and the rigging vwhereby the draw-bar maybe allowed a piv,

otal movement and the jaws of the yokemay be effectually prevented fromseparating.

struct the yoke in such a manner as to offer Another object of theinvention `is to constrong resistance to end thrusts to which suchconstructions are peculiarly liable.

vIn the drawings which accompany this specification and which constitutea part of the application, Figure 1 is a side view of a yoke andVdraw-bar broken away; Fig. 2 is a to plan View of the parts shown 1nFig. 1

w1th vthe draw-bar rotated to its unlocked position; Fig. 3 is a View ofthe locking connec'tion between the draw-bar and the yoke in which thejaws on the draw-bar are omitted; Fig. 4 is a top view of the conystruction shown in Fig. 3.

Vherein mentioned to give .the draw-bar a It is desirable inconstructions of the kind pivotal movement to provide for the travel ofthe cars on a curve or in switching the same, and also to connect thedraw-bar and oke so that when either of the parts is broken or injuredthey may be readily separated and the replacing be accomplished withless expense and troublethan if they constituted a solid member. lit isalsodesirable to formv the yoke to receive shocks and absorbstresseswhich are set up by the normal operation of cars, and to thisend `transverse connecting walls in the yoke are provided. Further, Idispense with the use of a pin to connect the draw-bar and yoke and formthe connection in such manner that the jaws of the yoke are preventedfrom spreading. The objects my invention accomplishes are consequently,great compactness of parts, dispensing with a pin or bolt, preventingspreading of the jaws of the yoke, and furnishing great capacity in theyoke for absorbing shocks and stresses thereon, in addition to providinga transverse pivotal movement for the draw-bar.

In the drawings, 1 is the end of a drawsary to show the entiredraw-barfor this purpose; 2 1s the yoke formed as here shown' preferably1n three sections, 3, 4, and 5, cast openings 6 and 7 to receivethe'spring members 8 and .9 which are under compression bar broken away,it not beingdeemed* necesrespectively between the follower plates, 10,

11, and 12, 13, which are adapted to 'engage' the draft sills in a wellunderstood manner to'furnish a resilient connection between the draw-barand the draft sills.

Sections 3 and 4 lare separated by the.,

cludes the jaw members 16 and 15 whichy are formed withv the curved lugs17 "18 oppositely disposed on. the inner faces of lthev jaws; theseshoulders are arc-shaped and permit the draw-bar to havea swingingmovement thereon inthe following manner:

'75 not only lock the coupling to the yoke, but

The end of the draw-bar is formed Withthe arc-shaped lugs 19, 19 thereonwhichare adapted'to engage the convex faces of the shoulders 17 and 18,The draw-bar is also provided with the arc-shaped grooves 20, 21arranged on the opposite faces thereof ad jacent to the lugs 19, 19a toreceive the lugs 17, 18 formed on the yoke. The curved shoulders 22, 23formed on the draw-bar are adapted to fit into the concave walls of thelugs 17, 18. Thus there is formed a locking connection between thedraw-bar and the yoke which resists separation longitudinally 'but whichpermits lateral swinging movement of the draw-bar as appears in Fig. 2.The draw-bar is positioned in the jaws of the yoke by turning it to theposition shown in dotted lines in Fig. 2 so that the edges of the lugs17 and 18 may enter the grooves 20 and 21, whereupon if the drawbar berotated about the center of curvature'of the lugs, it will be broughtinto proper position for operation as appears in Fig. 1. l`When thuspositioned, the convex lend of the draw-bar abuts against the con caveface 24 of the transverse wall 25 in the yoke, and when during theoperation of the car the draw-bar is subjected to buffing, the wall 25receives the shock and distributes it throughout the yoke and to theassociated parts of the draft rigging and the car, thereby relieving thelugs 17 and 18 from all bufling stresses. This formation tends toprevent the spreading ofthe jaws 60 integral; sect-ions ,3 and 4contain'elongated I and 16, but yet under the hardships of service itsometimes happens that a great spreading or twistmg stress may beexerted upon these jaws, and to guard completelyagainst the spreadingthereof which would tend to destroy their usefulness, I provide the jaws26 and 27 on the end of the drawbar which overlie the ends of the jaws15 and 16, and hold the same against a spreading movement thereof. Inthis manner I dispense entirely with the usual pin passing through theinterlocking parts of the yoke and draw-bar and thereby obviate thenecessorbing the-pulling and twisting stresses in-A cident to the normaloperation of cars.

Modifications of the construction herein shown may-be made and I do notlimit myself except` in accordance with the scope of theappended-claims.

What I claim is:

1`. The combination with a draw-bar having its rear endv transverselycurved and having transversely curved grooves on its learly, also, theconstruction', 4.wtion of said lugs,

necting walls therein, jaws formed at one end thereof, and curvedtransverse lugs o positely disposed on the inner faces of said jaws, incombination with a draw-bar having grooves formed therein for therecepone end of said draw-bar being convex and abuttinff against one ofsaid walls to transmit buhng stresses.

3. The combination with a draw-bar having its rear endtransversclyburved and also having transversely curved grooves on itsupper and lower faces and upper and lower overhanging members, of a yokeprovided with a cross wall transversely concaved to receive the saidinner end of said draw-bar, said yoke having jaws provided with curvedshoulders fitting in said grooves of the draw-bar, saidoverhanging-members of said draw-bar preventing spreading of said aws.

In testimony whereof I atlix my signature in the presence oftwowitnesses.

JAMES TIMMS. Witnesses:

Guo. W. RIGHTMLRE, HORACE S. KERR.

